Showing papers by "Vincenzo Cavasinni published in 1996"
01 Dec 1996
82 citations
01 May 1996-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: The NOMAD electromagnetic calorimeter as discussed by the authors is a two-stage photomultipliers and a low-noise electronic chain, which operates in a 0.4 T magnetic field transverse to the counter axis.
Abstract: A description is given of the NOMAD electromagnetic calorimeter, consisting of 875 lead-glass counters read out by two-stage photomultipliers and a low noise electronic chain. The detector operates in a 0.4 T magnetic field transverse to the counter axis. The paper discusses the design criteria, the lead-glass characteristics, the properties of the read out chain and provides a summary of the calorimeter performance.
31 citations
01 Jan 1996
18 citations
01 Apr 1996-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: In this article, a high stability system based on blue light emitting diodes (LED) and current pulse generators for calibration and monitoring of lead-glass calorimeters is presented.
Abstract: We have designed, built and tested a high stability system based on blue light emitting diodes (LED) and current pulse generators for calibration and monitoring of lead-glass calorimeters. This apparatus is presently being used for the electromagnetic calorimeter of the WA96 (NOMAD) experiment at CERN. The system was developed to minimize the sensitivity to temperature variations, different loadings, and ageing effects. Tests performed both in the laboratory and in the experiment showed that the response of the lead-glass calorimeter modules to LED light pulses could be kept within the precision of ±1% for periods of several months.
18 citations
01 Dec 1996
8 citations
TL;DR: In this paper, a Galilean experiment was performed to test the g-universality and the results showed no evidence for any composition-dependent acceleration within a sensitivity of δa < 1 μGal.
Abstract: We describe in detail a Galilean experiment performed to test theg-universality and we present our final results. The experiment measures the simultaneous free falling of two masses of different nuclear composition. The results have shown no evidence for any composition-dependent acceleration within a sensitivity of δa < 1 μGal.
7 citations
11 May 1996-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: In this article, the authors report the results of measurements performed using a tracking detector based on 835 μm scintillating fibres read out by two position-sensitive photomultipliers.
Abstract: We report the results of measurements performed using a tracking detector based on 835 μm scintillating fibres read out by two position-sensitive photomultipliers. A six-layer hodoscope consisting of 1.2 m long fibres has been built and tested using cosmic rays. Subsequently, two such hodoscopes have been assembled and tested using a hadron beam at the CERN PS. The efficiency per plane is found to be about 70% and the point resolution about 130 μm. The signal-to-noise ratio is about 2.4 and is dominated by crosstalk in the position-sensitive photomultipliers.
5 citations